/*
 * Copyright (c) 2018 THL A29 Limited, a Tencent company. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package com.qdxwx.sms.tencent.common.http;

import com.qdxwx.sms.tencent.common.exception.TencentCloudSDKException;
import com.qdxwx.sms.tencent.common.profile.HttpProfile;
import okhttp3.*;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.util.concurrent.TimeUnit;


public class HttpConnection {

  private final OkHttpClient client;
  private final OkHttpClient.Builder builder;
  private final HttpProfile httpProfile;

  public HttpConnection(HttpProfile httpProfile) {
    this(httpProfile, null);
  }

  public HttpConnection(HttpProfile httpProfile, Interceptor interceptor) {
    this.httpProfile = httpProfile;
    this.builder = new OkHttpClient.Builder();
    this.builder.connectTimeout(this.httpProfile.getConnTimeout(), TimeUnit.SECONDS);
    this.builder.readTimeout(this.httpProfile.getReadTimeout(), TimeUnit.SECONDS);
    this.builder.writeTimeout(this.httpProfile.getConnTimeout(), TimeUnit.SECONDS);
    this.setProxy();
    if (interceptor!=null) {
      this.builder.addInterceptor(interceptor);
    }
    this.client = this.builder.build();
  }

  private void setProxy() {
    String host = this.httpProfile.getProxyHost();
    int port = this.httpProfile.getProxyPort();
    if (host == null || host.isEmpty()) {
      return;
    }
    Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(host, port));
    builder.proxy(proxy);
    final String username = this.httpProfile.getProxyUsername();
    final String password = this.httpProfile.getProxyPassword();
    if (username == null || username.isEmpty()) {
      return;
    }
    builder.authenticator(
            (route, response) -> {
              String credential = Credentials.basic(username, password);
              return response
                      .request()
                      .newBuilder()
                      .header("Proxy-Authorization", credential)
                      .build();
            });
  }

  public Response doRequest(Request request) throws TencentCloudSDKException {
    Response response = null;
    try {
      response = this.client.newCall(request).execute();
    } catch (IOException e) {
      throw new TencentCloudSDKException(e.getClass().getName() + "-" + e.getMessage());
    }
    return response;
  }

  public Response getRequest(String url) throws TencentCloudSDKException {
    Request request = null;
    try {
      request = new Request.Builder().url(url).get().build();
    } catch (IllegalArgumentException e) {
      throw new TencentCloudSDKException(e.getClass().getName() + "-" + e.getMessage());
    }

    return this.doRequest(request);
  }

  public Response getRequest(String url, Headers headers) throws TencentCloudSDKException {
    Request request = null;
    try {
      request = new Request.Builder().url(url).headers(headers).get().build();
    } catch (IllegalArgumentException e) {
      throw new TencentCloudSDKException(e.getClass().getName() + "-" + e.getMessage());
    }

    return this.doRequest(request);
  }

  public Response postRequest(String url, String body) throws TencentCloudSDKException {
    MediaType contentType = MediaType.parse("application/x-www-form-urlencoded");
    Request request = null;
    try {
      request = new Request.Builder().url(url).post(RequestBody.create(body, contentType)).build();
    } catch (IllegalArgumentException e) {
      throw new TencentCloudSDKException(e.getClass().getName() + "-" + e.getMessage());
    }

    return this.doRequest(request);
  }

  public Response postRequest(String url, String body, Headers headers)
          throws TencentCloudSDKException {
    String typeStr = headers.get("Content-Type");
    if (typeStr == null) {
      typeStr = "application/x-www-form-urlencoded";
    }
    MediaType contentType = MediaType.parse(typeStr);
    Request request = null;
    try {
      request =
              new Request.Builder()
                      .url(url)
                      .post(RequestBody.create(body, contentType))
                      .headers(headers)
                      .build();
    } catch (IllegalArgumentException e) {
      throw new TencentCloudSDKException(e.getClass().getName() + "-" + e.getMessage());
    }

    return this.doRequest(request);
  }

  public Response postRequest(String url, byte[] body, Headers headers)
          throws TencentCloudSDKException {
    String typeStr = headers.get("Content-Type");
    if (typeStr == null) {
      typeStr = "application/x-www-form-urlencoded";
    }
    MediaType contentType = MediaType.parse(typeStr);
    Request request = null;
    try {
      request =
              new Request.Builder()
                      .url(url)
                      .post(RequestBody.create(body, contentType))
                      .headers(headers)
                      .build();
    } catch (IllegalArgumentException e) {
      throw new TencentCloudSDKException(e.getClass().getName() + "-" + e.getMessage());
    }

    return this.doRequest(request);
  }
}
